Home / 55,396.70-83,106.02-20,336.66

Finding the Fourth Proportional to 55,396.70, 83,106.02 and 20,336.66

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Solution

The fourth proportional to 55,396.70, 83,106.02 and 20,336.66 is: 30,509.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,396.70 : 83,106.02 = 20,336.66 : x
  2. Step 2: Convert to fraction form
    55,396.70/83,106.02 = 20,336.66/x
  3. Step 3: Cross multiply
    55,396.70x = 83,106.02 × 20,336.66
  4. Step 4: Simplify right side
    55,396.70x = 1,690,098,872.69
  5. Step 5: Solve for x
    x = 1,690,098,872.69/55,396.70
  6. Step 6: Final answer
    x = 30,509.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.